The Enduraplas 4000 Gallon Black Vertical Storage Tank (SKU THV04000B) is a large-capacity polyethylene vertical tank built for bulk water storage on farms, rural fire-water reservoirs, industrial water reuse, and remote-site holding. It stands 124 in tall on a 110 in outside diameter (110 x 110 in footprint), giving you a full 4,000 gallons of usable storage in a stable, wide-based cylinder. The black color blocks light to slow algae growth, which is why it is a common pick for water that sits for extended periods.
Will it work for your site?
This is a polyethylene vertical storage tank with a 1.9 specific gravity rating, so the wall is engineered to hold liquids up to 1.9 times the weight of water. That rating is the ceiling worth planning around: filled with water the contents weigh about 33,360 lb, while the 63,384 lb figure is the maximum rated content weight at the full 1.9 SG. For most heavy agricultural and industrial liquids up to 1.9 SG, this tank already covers the load. Those weights matter more than the gallon count when you plan a base. Before you set it, read our Concrete Pad Sizing for Above-Ground Polyethylene Tanks guide, and use the Tank Sizing Calculator and Tank Sizing Guide to confirm 4,000 gallons matches your draw-and-refill cycle. See the technical drawing on this page for the full dimensional layout.
Common uses and sizing
At this size the tank serves well as a rural or remote fire-water reservoir feeding a private fire-protection stack; our guide on Fire-Water Reservoir Tank Design for Rural and Remote Sites walks through NFPA 22 sizing discipline and cold-climate freeze protection. Black poly slows algae but does not prevent freezing, so cold-climate buyers should plan freeze protection using that guide. It also suits industrial water reuse trains that aggregate grey-water, rainwater, and HVAC condensate into quality-banded storage, covered in our Industrial Water Reuse Tank Topology guide, and for harvested-rainwater setups our rainwater harvesting guide covers first-flush practice.
The mistake to avoid
The most common error on a tank this heavy is underbuilding the foundation. A 63,384 lb rated load on a 110 in diameter concentrates real weight; a pad that is undersized, unlevel, or poured on soft soil will crack the base or stress the tank wall over time. Size the pad for the full rated load, not the empty tank, and keep it dead level. Because the fitting and outlet configuration should match your service liquid, confirm the outlet layout by phone before ordering and specify gaskets for what you are storing.
This tank ships LTL freight from Neche, ND, quoted live to your ZIP. Get your freight cost in seconds with the Freight Cost Estimator, or call 866-418-1777 to confirm fittings, base prep, and lead time. Freight is quoted separately per ZIP; the listed price is before freight.
